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z -> -z Symmetry of Spin-Orbit Coupling and Weak Localization in Graphene

Research output: Contribution to journalJournal article


Article number166606
<mark>Journal publication date</mark>20/04/2012
<mark>Journal</mark>Physical review letters
Issue number16
Number of pages5
Pages (from-to)-
<mark>Original language</mark>English


We show that the influence of spin-orbit (SO) coupling on the weak-localization effect for electrons in graphene depends on the lack or presence of z -> -z symmetry in the system. While, for z -> -z asymmetric SO coupling, disordered graphene should display a weak antilocalization behavior at lowest temperature, z -> -z symmetric coupling leads to an effective saturation of decoherence time which can be partially lifted by an in-plane magnetic field, thus tending to restore the weak-localization effect.

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© 2012 American Physical Society